checkbox Table problem

[Diwakar Chittora]

Hi friends,
I am struggling with a jcheckbox table functionality , saw some posts and tried to implement it .
i need a functionality which is like this:
1. if i select all the all the individual records of the table then header table (checkbox) should be shown as checked
2. If after disselecting any of the rows the table header ,header checkbox should be shown as disable.

Code i have implemented is shown below . if any one expert knows do add the required code to the comments shown in the code ,do let me know

import java.awt.*;
 
import javax.swing.*;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.*;
 
import sun.java2d.loops.RenderCache;
 
import java.awt.event.*;
import java.util.ArrayList;
public class TP extends JFrame implements TableModelListener
{
Object colNames[] = {"", "String", "String"};
  Object [][] data = new Object [5][3];
  DefaultTableModel dtm;
  JTable table;
  
  public static void main (String[] args)
  {
    SwingUtilities.invokeLater(new Runnable(){
      public void run(){
        new TP().buildGUI();
      }
    });
  }
  
  public void buildGUI()
  {
  for(int i =0;i<5;i++)
  {
data[i][0] = new Boolean(false);
data[i][1] = "col"+i;
data[i][2] = "col2"+i;

  }
    dtm = new DefaultTableModel(data,colNames);
    table = new JTable(dtm);
    table.setDragEnabled(false);
    table.setCellSelectionEnabled(true);
table.getModel().addTableModelListener( this);
table.getColumnModel().getColumn(0).setPreferredWidth(18);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); 
    Object[][] data;
    JScrollPane sp = new JScrollPane(table);
    TableColumn tc = table.getColumnModel().getColumn(0);
    tc.setCellEditor(table.getDefaultEditor(Boolean.class));
    tc.setCellRenderer(table.getDefaultRenderer(Boolean.class));
    tc.setHeaderRenderer(new CheckBoxHeader(new MyItemListener()));
    table.addMouseListener(new MouseAdapter() {
        public void mouseClicked(MouseEvent mouseEvent) {
            Point p = mouseEvent.getPoint();
            int row = table.rowAtPoint(p);
            int column = table.columnAtPoint(p);
            Object value = table.getValueAt(row, column);
            int checkedCount = 0;
            if(column == 0 ){
                Component c =table.getCellRenderer(row, column).getTableCellRendererComponent(
                table, value, true, true, row, column);
               
                if (c instanceof JCheckBox) {
                    boolean[] flags = new boolean[table.getRowCount()];
                    for (int i = 0; i < table.getRowCount(); i++) {
                        flags[i] = ((Boolean) table.getValueAt(i, 0)).booleanValue();
                        if(flags[i])
                        {
                            checkedCount++;
                        }
                    }
                if( checkedCount== table.getRowCount())
                    {
                        //TODO  show click in label of jtable
                   
//                    show check box as checked 
                    
                     
                    }
                if(checkedCount!= table.getRowCount())
                {
//                show check box as unchecked 
 
 
                }
                }
            }
        }
    });
    JFrame f = new JFrame();
    f.getContentPane().add(sp);
    f.pack();
    f.setLocationRelativeTo(null);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
  }
  class MyItemListener implements ItemListener
  {
  public void itemStateChanged(ItemEvent e1) {
      Object source = e1.getSource();
      String text;
      if (source instanceof AbstractButton == false) return;
      text = ((AbstractButton)source).getText();
      boolean checked = e1.getStateChange() == ItemEvent.SELECTED;
      for(int x = 0, y = table.getRowCount(); x < y; x++)
      {
        table.setValueAt(new Boolean(checked),x,0);
      }
      int column = ((CheckBoxHeader)(e1.getItem())).getColumn();      
      Checkbox cb = (Checkbox) e1.getItem();
      cb.setEnabled(false);
      System.err.println("after");
    }
 
}
class CheckBoxHeader extends JCheckBox
    implements TableCellRenderer, MouseListener {
  protected CheckBoxHeader rendererComponent;
  protected int column;
  protected boolean mousePressed = false;
  public CheckBoxHeader(ItemListener itemListener) {
    rendererComponent = this;
    rendererComponent.addItemListener(itemListener);
  }
  public Component getTableCellRendererComponent(JTable table, Object value,boolean isSelected,
                                                 boolean hasFocus, int row, int column) {
    if (table != null) {
      JTableHeader header = table.getTableHeader();
      if (header != null) {
        rendererComponent.setForeground(header.getForeground());
        rendererComponent.setBackground(header.getBackground());
        rendererComponent.setFont(header.getFont());
        rendererComponent.setEnabled(true);
        Checkbox cb = (Checkbox) rendererComponent.getComponent(0);
        cb.setEnabled(false);
        
        header.addMouseListener(rendererComponent);
        
      }
    }
    setColumn(column);
//    rendererComponent.setText("Check All");
    setBorder(UIManager.getBorder("TableHeader.cellBorder"));
    return rendererComponent;
  }
  protected void setColumn(int column) {
    this.column = column;
  }
  public int getColumn() {
    return column;
  }
  protected void handleClickEvent(MouseEvent e) {
    if (mousePressed) {
      mousePressed=false;
      JTableHeader header = (JTableHeader)(e.getSource());
      JTable tableView = header.getTable();
      TableColumnModel columnModel = tableView.getColumnModel();
      int viewColumn = columnModel.getColumnIndexAtX(e.getX());
      int column = tableView.convertColumnIndexToModel(viewColumn);
 
      if (viewColumn == this.column && e.getClickCount() == 1 && column != -1) {
        doClick();
        
      }
    }
  }
  public void mouseClicked(MouseEvent e) {
    handleClickEvent(e);
    ((JTableHeader)e.getSource()).repaint();
  }
  public void mousePressed(MouseEvent e) {
    mousePressed = true;
  }
  public void mouseReleased(MouseEvent e) {
  }
  public void mouseEntered(MouseEvent e) {
  }
  public void mouseExited(MouseEvent e) {
  }
}
public void tableChanged(TableModelEvent e) {
// TODO Auto-generated method stub
if(e.getColumn()==0){
Object source = e.getSource();
int row = e.getFirstRow();
// check for producing reports 
System.out.println(row);
int column = e.getColumn();
System.err.println(column);
TableModel model = (TableModel)e.getSource();

}// TODO Auto-generated method stub

}
}

[RP]Added code tags[/RP]

[ September 11, 2008: Message edited by: Rob Prime ]

[ September 11, 2008: Message edited by: Rob Prime ]
[ September 11, 2008: Message edited by: Bear Bibeault ]

[Maneesh Godbole]

1) Please use CODE tags. It makes the code readable and understandable for others.
2) What is this : import sun.java2d.loops.RenderCache;
[ September 11, 2008: Message edited by: Maneesh Godbole ]

[Diwakar Chittora]

hi manish ,
next time i will keep a note of that .. today i got the solution of that .. thanks for your interest .

bbye
Diw

[Rob Spoor]

Care to share that solution for other ranchers who may have the same problem?

[Sharad Kharya]

@Diwakar

Can you please update the code which you had implemented to select header checkbox if all the checkbox gets selected one by one.
I am trying hard to implement tha same thing... but didnt find any solution for this.

Thanks In Advance
Sharad

[Rob Spoor]

Sharad, please Don't Wake The Zombies. This thread hasn't had a reply for nearly 6 months, and Diwara hasn't been active for 3 months.